21156081837

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1693}}^1\times {\mathrm{3539}}^1$

素因数の和:5353

約数の個数: 32

約数和(自身を含む): 31087203840

約数和(自身を除く): 9931122003

約数列:

[1, 3, 11, 33, 107, 321, 1177, 1693, 3531, 3539, 5079, 10617, 18623, 38929, 55869, 116787, 181151, 378673, 543453, 1136019, 1992661, 4165403, 5977983, 5991527, 12496209, 17974581, 65906797, 197720391, 641093389, 1923280167, 7052027279, 21156081837]

約数ペア:

[(1, 21156081837), (3, 7052027279), (11, 1923280167), (33, 641093389), (107, 197720391), (321, 65906797), (1177, 17974581), (1693, 12496209), (3531, 5991527), (3539, 5977983), (5079, 4165403), (10617, 1992661), (18623, 1136019), (38929, 543453), (55869, 378673), (116787, 181151)]